#include <stdio.h>

int main()
{
    const int number = 10;   // c99 standard
    int x;
    int count[number];
    int i;
    for(i=0;i<number;i++)
    {
        count[i]=0;
    }
    scanf("%d",&x);
    while(x!=-1)
    {
        if(x>=0 && x<=9)
        {
            count[x]++;
        }
        scanf("%d",&x);
    }
    for(i=0;i<number;i++)
    {
        printf("%d:%d\n",i,count[i]);
    }
    printf("\n");
    return 0;
}